EP 1115197 A3 20030326 - Digital FM stereo demodulator and method
Title (en)
Digital FM stereo demodulator and method
Title (de)
Digitaler FM-Stereo-Demodulator, und Verfahren dazu
Title (fr)
Démodulateur numérique pour stéréo-FM, et procédé
Publication
Application
Priority
JP 36225199 A 19991221
Abstract (en)
[origin: EP1115197A2] A stereo composite signal including a pilot signal is demodulated by processing input samples to obtain internal samples having variable sampling timings, synchronizing these sampling timings with the pilot signal, and digitally processing the internal samples to obtain stereo audio data. The internal samples may be obtained from the input samples by decimation or interpolation. Since the sampling frequency and sampling timing of the input samples do not have to be precisely controlled, no voltage-controlled oscillator is needed, and the demodulator can easily be incorporated into a monolithic integrated circuit. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H03D 3/006 (2013.01 - EP US)
Citation (search report)
- [A] US 5471534 A 19951128 - UTTER MARK E [US]
- [A] EP 0540195 A2 19930505 - FORD WERKE AG [DE], et al
- [A] US 5357544 A 19941018 - HORNER THOMAS G [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1115197 A2 20010711; EP 1115197 A3 20030326; EP 1115197 B1 20051026; DE 60023436 D1 20051201; DE 60023436 T2 20060713; JP 2001177427 A 20010629; JP 3646598 B2 20050511; US 6901146 B1 20050531
DOCDB simple family (application)
EP 00311300 A 20001218; DE 60023436 T 20001218; JP 36225199 A 19991221; US 72329100 A 20001128